mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-12 16:16:35 +00:00
libstrat: delete old ipc templating.
This commit is contained in:
Michael Scire
parent
536b89efae
commit
be044e691c
1 changed files with 0 additions and 569 deletions
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@ -1,569 +0,0 @@
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <switch.h>
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#include <cstdlib>
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#include <cstring>
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#include <tuple>
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#include <boost/callable_traits.hpp>
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#include <type_traits>
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#include "domainowner.hpp"
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
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/* Base for In/Out Buffers. */
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struct IpcBufferBase {};
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/* Represents an A descriptor. */
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struct InBufferBase : IpcBufferBase {};
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template <typename T, BufferType e_t = BufferType_Normal>
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struct InBuffer : InBufferBase {
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T *buffer;
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size_t num_elements;
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BufferType type;
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static const BufferType expected_type = e_t;
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InBuffer(void *b, size_t n, BufferType t) : buffer((T *)b), num_elements(n/sizeof(T)), type(t) { }
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};
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/* Represents a B descriptor. */
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struct OutBufferBase : IpcBufferBase {};
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template <typename T, BufferType e_t = BufferType_Normal>
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struct OutBuffer : OutBufferBase {
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T *buffer;
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size_t num_elements;
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BufferType type;
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static const BufferType expected_type = e_t;
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OutBuffer(void *b, size_t n, BufferType t) : buffer((T *)b), num_elements(n/sizeof(T)), type(t) { }
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};
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/* Represents an X descriptor. */
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template <typename T>
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struct InPointer : IpcBufferBase {
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T *pointer;
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size_t num_elements;
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InPointer(void *p, size_t n) : pointer((T *)p), num_elements(n/sizeof(T)) { }
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};
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/* Represents a C descriptor. */
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struct OutPointerWithServerSizeBase : IpcBufferBase {};
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template <typename T, size_t n>
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struct OutPointerWithServerSize : OutPointerWithServerSizeBase {
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T *pointer;
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static const size_t num_elements = n;
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OutPointerWithServerSize(void *p) : pointer((T *)p) { }
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};
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/* Represents a C descriptor with size in raw data. */
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template <typename T>
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struct OutPointerWithClientSize : IpcBufferBase {
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T *pointer;
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size_t num_elements;
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OutPointerWithClientSize(void *p, size_t n) : pointer((T *)p), num_elements(n/sizeof(T)) { }
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};
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/* Represents an input PID. */
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struct PidDescriptor {
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u64 pid;
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PidDescriptor(u64 p) : pid(p) { }
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};
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/* Represents a moved handle. */
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struct MovedHandle {
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Handle handle;
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MovedHandle(Handle h) : handle(h) { }
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};
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/* Represents a copied handle. */
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struct CopiedHandle {
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Handle handle;
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CopiedHandle(Handle h) : handle(h) { }
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};
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/* Forward declarations. */
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template <typename T>
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class ISession;
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/* Represents an output ServiceObject. */
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struct OutSessionBase {};
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template <typename T>
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struct OutSession : OutSessionBase {
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ISession<T> *session;
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u32 domain_id;
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OutSession(ISession<T> *s) : session(s), domain_id(DOMAIN_ID_MAX) { }
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};
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/* Utilities. */
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template <typename T, template <typename...> class Template>
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struct is_specialization_of {
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static const bool value = false;
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};
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template <template <typename...> class Template, typename... Args>
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struct is_specialization_of<Template<Args...>, Template> {
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static const bool value = true;
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};
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template<typename Tuple>
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struct pop_front;
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template<typename Head, typename... Tail>
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struct pop_front<std::tuple<Head, Tail...>> {
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using type = std::tuple<Tail...>;
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};
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template <typename T>
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struct is_ipc_buffer {
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static const bool value = std::is_base_of<IpcBufferBase, T>::value;
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};
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template <typename T>
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struct is_ipc_handle {
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static const size_t value = (std::is_same<T, MovedHandle>::value || std::is_same<T, CopiedHandle>::value) ? 1 : 0;
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};
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template <typename T>
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struct is_out_session {
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static const bool value = std::is_base_of<OutSessionBase, T>::value;
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};
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template <typename T>
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struct size_in_raw_data {
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static const size_t value = (is_ipc_buffer<T>::value || is_ipc_handle<T>::value || is_out_session<T>::value) ? 0 : ((sizeof(T) < sizeof(u32)) ? sizeof(u32) : (sizeof(T) + 3) & (~3));
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};
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template <typename ...Args>
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struct size_in_raw_data_for_arguments {
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static const size_t value = (size_in_raw_data<Args>::value + ... + 0);
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};
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template <typename ...Args>
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struct num_out_sessions_in_arguments {
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static const size_t value = ((is_out_session<Args>::value ? 1 : 0) + ... + 0);
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};
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template <typename T>
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struct size_in_raw_data_with_out_pointers {
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static const size_t value = is_specialization_of<T, OutPointerWithClientSize>::value ? 2 : size_in_raw_data<T>::value;
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};
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template <typename ...Args>
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struct size_in_raw_data_with_out_pointers_for_arguments {
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static const size_t value = ((size_in_raw_data_with_out_pointers<Args>::value + ... + 0) + 3) & ~3;
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};
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template <typename T>
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struct is_ipc_inbuffer {
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static const size_t value = (std::is_base_of<InBufferBase, T>::value) ? 1 : 0;
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};
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template <typename ...Args>
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struct num_inbuffers_in_arguments {
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static const size_t value = (is_ipc_inbuffer<Args>::value + ... + 0);
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};
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template <typename T>
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struct is_ipc_inpointer {
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static const size_t value = (is_specialization_of<T, InPointer>::value) ? 1 : 0;
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};
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template <typename ...Args>
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struct num_inpointers_in_arguments {
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static const size_t value = (is_ipc_inpointer<Args>::value + ... + 0);
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};
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template <typename T>
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struct is_ipc_outpointer {
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static const size_t value = (is_specialization_of<T, OutPointerWithClientSize>::value || std::is_base_of<OutPointerWithServerSizeBase, T>::value) ? 1 : 0;
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};
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template <typename ...Args>
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struct num_outpointers_in_arguments {
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static const size_t value = (is_ipc_outpointer<Args>::value + ... + 0);
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};
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template <typename T>
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struct is_ipc_inoutbuffer {
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static const size_t value = (std::is_base_of<InBufferBase, T>::value || std::is_base_of<OutBufferBase, T>::value) ? 1 : 0;
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};
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template <typename ...Args>
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struct num_inoutbuffers_in_arguments {
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static const size_t value = (is_ipc_inoutbuffer<Args>::value + ... + 0);
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};
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template <typename ...Args>
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struct num_handles_in_arguments {
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static const size_t value = (is_ipc_handle<Args>::value + ... + 0);
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};
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template <typename ...Args>
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struct num_pids_in_arguments {
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static const size_t value = ((std::is_same<Args, PidDescriptor>::value ? 1 : 0) + ... + 0);
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};
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template<typename T>
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T GetValueFromIpcParsedCommand(IpcParsedCommand& r, IpcCommand& out_c, u8 *pointer_buffer, size_t& pointer_buffer_offset, size_t& cur_rawdata_index, size_t& cur_c_size_offset, size_t& a_index, size_t& b_index, size_t& x_index, size_t& c_index, size_t& h_index) {
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const size_t old_rawdata_index = cur_rawdata_index;
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const size_t old_c_size_offset = cur_c_size_offset;
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const size_t old_pointer_buffer_offset = pointer_buffer_offset;
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if constexpr (std::is_base_of<InBufferBase, T>::value) {
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const T& value = T(r.Buffers[a_index], r.BufferSizes[a_index], r.BufferTypes[a_index]);
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++a_index;
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return value;
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} else if constexpr (std::is_base_of<OutBufferBase, T>::value) {
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const T& value = T(r.Buffers[b_index], r.BufferSizes[b_index], r.BufferTypes[b_index]);
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++b_index;
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return value;
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} else if constexpr (is_specialization_of<T, InPointer>::value) {
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const T& value{r.Statics[x_index], r.StaticSizes[x_index]};
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++x_index;
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return value;
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} else if constexpr (std::is_base_of<OutPointerWithServerSizeBase, T>::value) {
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T t = T(pointer_buffer + old_pointer_buffer_offset);
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ipcAddSendStatic(&out_c, pointer_buffer + old_pointer_buffer_offset, t.num_elements * sizeof(*t.pointer), c_index++);
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return t;
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} else if constexpr (is_specialization_of<T, OutPointerWithClientSize>::value) {
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cur_c_size_offset += sizeof(u16);
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u16 sz = *((u16 *)((u8 *)(r.Raw) + old_c_size_offset));
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pointer_buffer_offset += sz;
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ipcAddSendStatic(&out_c, pointer_buffer + old_pointer_buffer_offset, sz, c_index++);
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return T(pointer_buffer + old_pointer_buffer_offset, sz);
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} else if constexpr (is_ipc_handle<T>::value) {
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return r.Handles[h_index++];
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} else if constexpr (std::is_same<T, PidDescriptor>::value) {
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cur_rawdata_index += sizeof(u64) / sizeof(u32);
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return PidDescriptor(r.Pid);
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} else if constexpr (std::is_same<T, bool>::value) {
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/* Official bools accept non-zero values with low bit unset as false. */
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cur_rawdata_index += size_in_raw_data<T>::value / sizeof(u32);
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return ((*(((u32 *)r.Raw + old_rawdata_index))) & 1) == 1;
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} else {
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cur_rawdata_index += size_in_raw_data<T>::value / sizeof(u32);
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return *((T *)((u32 *)r.Raw + old_rawdata_index));
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}
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}
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template <typename T>
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bool ValidateIpcParsedCommandArgument(IpcParsedCommand& r, size_t& cur_rawdata_index, size_t& cur_c_size_offset, size_t& a_index, size_t& b_index, size_t& x_index, size_t& c_index, size_t& h_index, size_t& total_c_size) {
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const size_t old_c_size_offset = cur_c_size_offset;
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if constexpr (std::is_base_of<InBufferBase, T>::value) {
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return r.Buffers[a_index] != NULL && r.BufferDirections[a_index] == BufferDirection_Send && r.BufferTypes[a_index++] == T::expected_type;
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} else if constexpr (std::is_base_of<OutBufferBase, T>::value) {
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return r.Buffers[b_index] != NULL && r.BufferDirections[b_index] == BufferDirection_Recv && r.BufferTypes[b_index++] == T::expected_type;
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} else if constexpr (is_specialization_of<T, InPointer>::value) {
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return r.Statics[x_index] != NULL;
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} else if constexpr (std::is_base_of<OutPointerWithServerSizeBase, T>::value) {
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total_c_size += T::num_elements;
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return true;
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} else if constexpr (is_specialization_of<T, OutPointerWithClientSize>::value) {
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cur_c_size_offset += sizeof(u16);
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u16 sz = *((u16 *)((u8 *)(r.Raw) + old_c_size_offset));
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total_c_size += sz;
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return true;
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} else if constexpr (std::is_same<T, MovedHandle>::value) {
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return !r.WasHandleCopied[h_index++];
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} else if constexpr (std::is_same<T, CopiedHandle>::value) {
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return r.WasHandleCopied[h_index++];
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} else {
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return true;
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}
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}
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/* Validator. */
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template <typename ArgsTuple>
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struct Validator;
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template<typename... Args>
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struct Validator<std::tuple<Args...>> {
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IpcParsedCommand &r;
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size_t pointer_buffer_size;
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Result operator()() {
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if (r.RawSize < size_in_raw_data_with_out_pointers_for_arguments<Args... >::value) {
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return 0xF601;
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}
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if (r.NumBuffers != num_inoutbuffers_in_arguments<Args... >::value) {
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return 0xF601;
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}
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if (r.NumStatics != num_inpointers_in_arguments<Args... >::value) {
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return 0xF601;
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}
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if (r.NumStaticsOut != num_outpointers_in_arguments<Args... >::value) {
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return 0xF601;
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}
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if (r.NumHandles != num_handles_in_arguments<Args... >::value) {
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return 0xF601;
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}
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constexpr size_t num_pids = num_pids_in_arguments<Args... >::value;
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static_assert(num_pids <= 1, "Number of PID descriptors in IpcCommandImpl cannot be > 1");
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if ((r.HasPid && num_pids == 0) || (!r.HasPid && num_pids)) {
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return 0xF601;
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}
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if (((u32 *)r.Raw)[0] != SFCI_MAGIC) {
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return 0xF601;
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}
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size_t a_index = 0, b_index = num_inbuffers_in_arguments<Args ...>::value, x_index = 0, c_index = 0, h_index = 0;
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size_t cur_rawdata_index = 4;
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size_t cur_c_size_offset = 0x10 + size_in_raw_data_for_arguments<Args... >::value + (0x10 - ((uintptr_t)r.Raw - (uintptr_t)r.RawWithoutPadding));
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size_t total_c_size = 0;
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if (!(ValidateIpcParsedCommandArgument<Args>(r, cur_rawdata_index, cur_c_size_offset, a_index, b_index, x_index, c_index, h_index, total_c_size) && ...)) {
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return 0xF601;
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}
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if (total_c_size > pointer_buffer_size) {
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return 0xF601;
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}
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return 0;
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}
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};
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/* Decoder. */
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template<typename OutTuple, typename ArgsTuple>
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struct Decoder;
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template<typename OutTuple, typename... Args>
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struct Decoder<OutTuple, std::tuple<Args...>> {
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static std::tuple<Args...> Decode(IpcParsedCommand& r, IpcCommand &out_c, u8 *pointer_buffer) {
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size_t a_index = 0, b_index = num_inbuffers_in_arguments<Args ...>::value, x_index = 0, c_index = 0, h_index = 0;
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size_t cur_rawdata_index = 4;
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size_t cur_c_size_offset = 0x10 + size_in_raw_data_for_arguments<Args... >::value + (0x10 - ((uintptr_t)r.Raw - (uintptr_t)r.RawWithoutPadding));
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size_t pointer_buffer_offset = 0;
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return std::tuple<Args... > {
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GetValueFromIpcParsedCommand<Args>(r, out_c, pointer_buffer, pointer_buffer_offset, cur_rawdata_index, cur_c_size_offset, a_index, b_index, x_index, c_index, h_index)
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...
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};
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}
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};
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/* Encoder. */
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template<typename ArgsTuple>
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struct Encoder;
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template<typename T>
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constexpr size_t GetAndUpdateOffsetIntoRawData(DomainOwner *domain_owner, size_t& offset) {
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auto old = offset;
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if (old == 0) {
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offset += sizeof(u64);
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} else {
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if constexpr (is_out_session<T>::value) {
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if (domain_owner) {
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offset += sizeof(u32);
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}
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} else {
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offset += size_in_raw_data<T>::value;
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}
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}
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return old;
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}
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template<typename T>
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void EncodeValueIntoIpcMessageBeforePrepare(DomainOwner *domain_owner, IpcCommand *c, T &value) {
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if constexpr (std::is_same<T, MovedHandle>::value) {
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ipcSendHandleMove(c, value.handle);
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} else if constexpr (std::is_same<T, CopiedHandle>::value) {
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ipcSendHandleCopy(c, value.handle);
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} else if constexpr (std::is_same<T, PidDescriptor>::value) {
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ipcSendPid(c);
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} else if constexpr (is_out_session<T>::value) {
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if (domain_owner && value.session) {
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/* TODO: Check error... */
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if (value.domain_id != DOMAIN_ID_MAX) {
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domain_owner->set_object(value.session->get_service_object(), value.domain_id);
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} else {
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domain_owner->reserve_object(value.session->get_service_object(), &value.domain_id);
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}
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value.session->close_handles();
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delete value.session;
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} else {
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ipcSendHandleMove(c, value.session ? value.session->get_client_handle() : 0x0);
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}
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}
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}
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template<typename T>
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void EncodeValueIntoIpcMessageAfterPrepare(DomainOwner *domain_owner, u8 *cur_out, T value) {
|
||||
if constexpr (is_ipc_handle<T>::value || std::is_same<T, PidDescriptor>::value) {
|
||||
/* Do nothing. */
|
||||
} else if constexpr (is_out_session<T>::value) {
|
||||
if (domain_owner) {
|
||||
*((u32 *)cur_out) = value.domain_id;
|
||||
}
|
||||
} else {
|
||||
*((T *)(cur_out)) = value;
|
||||
}
|
||||
}
|
||||
|
||||
template<typename... Args>
|
||||
struct Encoder<std::tuple<Args...>> {
|
||||
IpcCommand &out_command;
|
||||
|
||||
auto operator()(DomainOwner *domain_owner, Args... args) {
|
||||
static_assert(sizeof...(Args) > 0, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
size_t offset = 0;
|
||||
|
||||
u8 *tls = (u8 *)armGetTls();
|
||||
|
||||
std::fill(tls, tls + 0x100, 0x00);
|
||||
|
||||
((EncodeValueIntoIpcMessageBeforePrepare<Args>(domain_owner, &out_command, args)), ...);
|
||||
|
||||
/* Remove the extra space resulting from first Result type. */
|
||||
struct {
|
||||
u64 magic;
|
||||
u64 result;
|
||||
} *raw;
|
||||
if (domain_owner == NULL) {
|
||||
raw = (decltype(raw))ipcPrepareHeader(&out_command, sizeof(*raw) + size_in_raw_data_for_arguments<Args... >::value - sizeof(Result));
|
||||
} else {
|
||||
raw = (decltype(raw))ipcPrepareHeaderForDomain(&out_command, sizeof(*raw) + size_in_raw_data_for_arguments<Args... >::value + (num_out_sessions_in_arguments<Args... >::value * sizeof(u32)) - sizeof(Result), 0);
|
||||
auto resp_header = (DomainResponseHeader *)((uintptr_t)raw - sizeof(DomainResponseHeader));
|
||||
*resp_header = {0};
|
||||
resp_header->NumObjectIds = num_out_sessions_in_arguments<Args... >::value;
|
||||
}
|
||||
|
||||
|
||||
raw->magic = SFCO_MAGIC;
|
||||
|
||||
u8 *raw_data = (u8 *)&raw->result;
|
||||
|
||||
((EncodeValueIntoIpcMessageAfterPrepare<Args>(domain_owner, raw_data + GetAndUpdateOffsetIntoRawData<Args>(domain_owner, offset), args)), ...);
|
||||
|
||||
Result rc = raw->result;
|
||||
|
||||
if (R_FAILED(rc)) {
|
||||
std::fill(tls, tls + 0x100, 0x00);
|
||||
ipcInitialize(&out_command);
|
||||
if (domain_owner != NULL) {
|
||||
raw = (decltype(raw))ipcPrepareHeaderForDomain(&out_command, sizeof(raw), 0);
|
||||
auto resp_header = (DomainResponseHeader *)((uintptr_t)raw - sizeof(DomainResponseHeader));
|
||||
*resp_header = {0};
|
||||
} else {
|
||||
raw = (decltype(raw))ipcPrepareHeader(&out_command, sizeof(raw));
|
||||
}
|
||||
raw->magic = SFCO_MAGIC;
|
||||
raw->result = rc;
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
template<auto IpcCommandImpl, typename Class, typename... Args>
|
||||
Result WrapDeferredIpcCommandImpl(Class *this_ptr, Args... args) {
|
||||
using InArgs = typename boost::callable_traits::args_t<decltype(IpcCommandImpl)>;
|
||||
using InArgsWithoutThis = typename pop_front<InArgs>::type;
|
||||
using OutArgs = typename boost::callable_traits::return_type_t<decltype(IpcCommandImpl)>;
|
||||
|
||||
static_assert(is_specialization_of<OutArgs, std::tuple>::value, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
static_assert(std::is_same_v<std::tuple_element_t<0, OutArgs>, Result>, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
static_assert(std::is_same_v<InArgsWithoutThis, std::tuple<Args...>>, "Invalid Deferred Wrapped IpcCommandImpl arguments!");
|
||||
|
||||
IpcCommand out_command;
|
||||
|
||||
ipcInitialize(&out_command);
|
||||
|
||||
auto tuple_args = std::make_tuple(args...);
|
||||
auto result = std::apply( [=](auto&&... a) { return (this_ptr->*IpcCommandImpl)(a...); }, tuple_args);
|
||||
|
||||
DomainOwner *down = NULL;
|
||||
|
||||
return std::apply(Encoder<OutArgs>{out_command}, std::tuple_cat(std::make_tuple(down), result));
|
||||
}
|
||||
|
||||
template<auto IpcCommandImpl, typename Class>
|
||||
Result WrapIpcCommandImpl(Class *this_ptr, IpcParsedCommand& r, IpcCommand &out_command, u8 *pointer_buffer, size_t pointer_buffer_size) {
|
||||
using InArgs = typename boost::callable_traits::args_t<decltype(IpcCommandImpl)>;
|
||||
using InArgsWithoutThis = typename pop_front<InArgs>::type;
|
||||
using OutArgs = typename boost::callable_traits::return_type_t<decltype(IpcCommandImpl)>;
|
||||
|
||||
static_assert(is_specialization_of<OutArgs, std::tuple>::value, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
static_assert(std::is_same_v<std::tuple_element_t<0, OutArgs>, Result>, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
|
||||
ipcInitialize(&out_command);
|
||||
|
||||
Result rc = Validator<InArgsWithoutThis>{r, pointer_buffer_size}();
|
||||
|
||||
if (R_FAILED(rc)) {
|
||||
return 0xF601;
|
||||
}
|
||||
|
||||
auto args = Decoder<OutArgs, InArgsWithoutThis>::Decode(r, out_command, pointer_buffer);
|
||||
auto result = std::apply( [=](auto&&... args) { return (this_ptr->*IpcCommandImpl)(args...); }, args);
|
||||
DomainOwner *down = NULL;
|
||||
if (r.IsDomainRequest) {
|
||||
down = this_ptr->get_owner();
|
||||
}
|
||||
|
||||
return std::apply(Encoder<OutArgs>{out_command}, std::tuple_cat(std::make_tuple(down), result));
|
||||
}
|
||||
|
||||
template<auto IpcCommandImpl>
|
||||
Result WrapStaticIpcCommandImpl(IpcParsedCommand& r, IpcCommand &out_command, u8 *pointer_buffer, size_t pointer_buffer_size) {
|
||||
using InArgs = typename boost::callable_traits::args_t<decltype(IpcCommandImpl)>;
|
||||
using OutArgs = typename boost::callable_traits::return_type_t<decltype(IpcCommandImpl)>;
|
||||
|
||||
static_assert(is_specialization_of<OutArgs, std::tuple>::value, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
static_assert(std::is_same_v<std::tuple_element_t<0, OutArgs>, Result>, "IpcCommandImpls must return std::tuple<Result, ...>");
|
||||
|
||||
ipcInitialize(&out_command);
|
||||
|
||||
Result rc = Validator<InArgs>{r, pointer_buffer_size}();
|
||||
|
||||
if (R_FAILED(rc)) {
|
||||
return 0xF601;
|
||||
}
|
||||
|
||||
auto args = Decoder<OutArgs, InArgs>::Decode(r, out_command, pointer_buffer);
|
||||
auto result = std::apply(IpcCommandImpl, args);
|
||||
DomainOwner *down = NULL;
|
||||
|
||||
return std::apply(Encoder<OutArgs>{out_command}, std::tuple_cat(std::make_tuple(down), result));
|
||||
}
|
||||
|
||||
#pragma GCC diagnostic pop
|
||||
|
||||
#include "isession.hpp"
|
||||
Loading…
Reference in a new issue